Classifications

• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
  • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
  • A23L5/40—Colouring or decolouring of foods
  • A23L5/42—Addition of dyes or pigments, e.g. in combination with optical brighteners
• • A—HUMAN NECESSITIES
  • A21—BAKING; EDIBLE DOUGHS
  • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
  • A21D2/00—Treatment of flour or dough by adding materials thereto before or during baking
  • A21D2/02—Treatment of flour or dough by adding materials thereto before or during baking by adding inorganic substances
• • A—HUMAN NECESSITIES
  • A21—BAKING; EDIBLE DOUGHS
  • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
  • A21D13/00—Finished or partly finished bakery products
  • A21D13/40—Products characterised by the type, form or use
  • A21D13/45—Wafers
• • A—HUMAN NECESSITIES
  • A21—BAKING; EDIBLE DOUGHS
  • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
  • A21D13/00—Finished or partly finished bakery products
  • A21D13/40—Products characterised by the type, form or use
  • A21D13/47—Decorated or decorative products
• • A—HUMAN NECESSITIES
  • A21—BAKING; EDIBLE DOUGHS
  • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
  • A21D13/00—Finished or partly finished bakery products
  • A21D13/80—Pastry not otherwise provided for elsewhere, e.g. cakes, biscuits or cookies
• • A—HUMAN NECESSITIES
  • A21—BAKING; EDIBLE DOUGHS
  • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
  • A21D15/00—Preserving finished, partly finished or par-baked bakery products; Improving
  • A21D15/08—Preserving finished, partly finished or par-baked bakery products; Improving by coating, e.g. with microbiocidal agents, with protective films
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
  • A23L35/00—Food or foodstuffs not provided for in groups A23L5/00 – A23L33/00; Preparation or treatment thereof
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
  • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
  • A23L5/40—Colouring or decolouring of foods
  • A23L5/42—Addition of dyes or pigments, e.g. in combination with optical brighteners
  • A23L5/43—Addition of dyes or pigments, e.g. in combination with optical brighteners using naturally occurring organic dyes or pigments, their artificial duplicates or their derivatives
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
  • C09C1/0021—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a core coated with only one layer having a high or low refractive index
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2200/00—Function of food ingredients
  • A23V2200/04—Colour
  • A23V2200/044—Colouring
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2200/00—Function of food ingredients
  • A23V2200/15—Flavour affecting agent
• • A—HUMAN NECESSITIES
  • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
  • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
  • A23V2200/00—Function of food ingredients
  • A23V2200/16—Taste affecting agent
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2004/00—Particle morphology
  • C01P2004/60—Particles characterised by their size
  • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
  • C09C1/0024—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
  • C09C1/0024—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index
  • C09C1/003—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index comprising at least one light-absorbing layer
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
  • C09C2200/10—Interference pigments characterized by the core material
  • C09C2200/1004—Interference pigments characterized by the core material the core comprising at least one inorganic oxide, e.g. Al2O3, TiO2 or SiO2
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
  • C09C2200/10—Interference pigments characterized by the core material
  • C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin

Definitions

• the present invention relates to the use of pearlescent pigments based on platelet-shaped substrates for coloring wafers and edible paper.
• pearlescent pigments are increasingly used for the optical enhancement of products, e.g. B. used in cosmetics, because beautiful colors and effects cause pleasant subjective feelings for the viewer and consumers.
• effect pigments e.g. B. for decorative cosmetics
• the strictest requirements are placed on the purity and quality of the pigments. Therefore, effect pigments are already used in the food sector, in particular for confectionery, to improve the color effect or for coloring, such as from DE 10 2004 052544 A1 , WO 03/063616 A1 and EP 3 189 736 A1 known.
• wafer is a thin pastry that is used for human consumption and as a sealing material and is made from water and flour.
• Starch can also be used to make the wafer lighter or whiter. Adding molasses to the dough makes the wafer darker after baking.
• Such wafers are e.g. used as bread hosts.
• Gluten-free wafers are made from corn flour or corn starch and water.
• wafers Due to the absence of dough acidification, loosening agents, protein and sugar and a low adhesive formation, wafers do not work, but remain flat, have a sticky but brittle texture and a bland taste. They are baked with little fat as a separating agent in so-called wafers, which consist of two baking surfaces, which are either heated on a fire or can be heated. Some wafers have a flat, smooth surface, others have surfaces with patterns, labels or pictorial, often religious, motifs. The latter surfaces are obtained by engraving in the baking surfaces. Often, however, motifs and structures applied to the wafer surface by the engraving of the baking surfaces are bad recognizable. Furthermore, the wafers with / without motif are often difficult to remove from the baking pan or break.
• wafers do not contain the required minimum amount of fat or sugar of at least 10%, according to the German Food Book they count as long-life baked goods, which in turn are counted as fine baked goods.
• Wafers are typically produced at temperatures of 150 to 250 ° C and a baking time of 1 to 8 minutes.
• the disadvantage is that at these temperatures the color strength of many natural and artificial dyes and pigments used in wafers decreases sharply with increasing temperature. Therefore, in the production of colored wafers, color / pigment must usually be added in excess. In extreme cases, the desired color effect cannot be achieved at all.
• the application of color / pigment to the finished wafer surface can be used to achieve the coloring.
• this is impossible or difficult to carry out. Consequently, the mixing of colors / pigments in the wafer dough remains as the best possible technical alternative.
• the object of the present invention is to dye wafers and edible paper both in the mass and on the surface without the product structure breaking and the coloring being adversely affected by the baking temperatures.
• the coloring of surfaces with patterns, lettering or pictorial, often religious motifs should continue to be clearly visible after coloring the wafer or edible paper.
• the present invention relates to the use of one or more pearlescent pigments based on platelet-shaped substrates for coloring wafers and edible paper.
• the pearlescent pigments are based on platelet-shaped substrates which are coated with one or more metal oxides and / or metal hydroxides.
• platelet-shaped substrates is understood to mean all platelet-shaped substrates known to the person skilled in the art.
• Suitable base substrates for the pearlescent pigments are transparent or semi-transparent platelet-shaped substrates.
• Layered silicates, talc, kaolin, platelet-shaped iron or aluminum oxides, glass, SiO 2 , TiO 2 platelets, platelet-shaped mixed oxides, such as, for example, are particularly suitable.
• the size of the base substrates is not critical per se and can be tailored to the respective application.
• the platelet-shaped substrates have a thickness of 0.005 to 10 ⁇ m, in particular 0.05 to 5 ⁇ m.
• the expansion in the other two areas is usually 1 to 500 ⁇ m, preferably 2 to 200 ⁇ m, and in particular 5 to 150 ⁇ m.
• Very particularly preferred pearlescent pigments have particle sizes of 10-60 ⁇ m or 5-25 ⁇ m or 10-150 ⁇ m or 5-50 ⁇ m.
• Preferred pearlescent pigments are based on natural mica platelets, synthetic mica platelets, SiO 2 platelets, Al 2 O 3 platelets, TiO 2 platelets, glass platelets, Fe 2 O 3 platelets, in particular synthetic mica platelets, natural mica platelets and SiO 2 platelets (no. E555 or E551 in the list of approved food additives in the European Union).
• the synthetic platelets such as synthetic mica platelets, SiO 2 platelets, Al 2 O 3 platelets, TiO 2 platelets, glass platelets, can be doped or undoped. Suitable dopants include metal oxides such as TiO 2 , ZrO 2 , SnO 2 .
• Pearlescent pigments are pigments based on platelet-shaped, transparent or semitransparent substrates made of, for example, layered silicates, such as mica, synthetic mica, talc, sericite, kaolin, glass or other silicate materials, which are mixed with colored or colorless metal oxides such as TiO 2 , titanium suboxides , Titanium oxynitrides, Fe 2 O 3 , Fe 3 O 4 , SnO 2 , ZnO and other metal oxides are coated alone or in a mixture in a uniform layer or in successive layers.
• layered silicates such as mica, synthetic mica, talc, sericite, kaolin, glass or other silicate materials, which are mixed with colored or colorless metal oxides such as TiO 2 , titanium suboxides , Titanium oxynitrides, Fe 2 O 3 , Fe 3 O 4 , SnO 2 , ZnO and other metal oxides are coated alone or in a mixture in a uniform layer or in successive layers.
• pearlescent pigments based on synthetic or natural mica platelets are coated with one or more metal oxides from the group TiO 2 , Fe 2 O 3 or Fe 3 O 4 or their mixtures or have a multilayer coating consisting of alternating high and low refractive index layers such as TiO 2 - SiO 2 - TiO 2 .
• SiO 2 or Al 2 O 3 platelets coated with TiO 2 and / or Fe 2 O 3 are also preferred.
• the SiO 2 platelets can be coated with one or more metal oxides, for example, as in FIG WO 93/08237 (wet chemical Coating) or DE-OS 196 14 637 (CVD method).
• the metal oxides applied to the platelet-shaped substrates are preferably food-grade materials that can be consumed by humans (No. E 171 (TiO 2 ) or E 172 (iron oxide) in the list of approved food additives in the European Union).
• Pearlescent pigment mixtures which have different particle sizes are also preferred. Special effects can be achieved if pearlescent pigments with "small” particle sizes such as 5-25 ⁇ m or 10-60 ⁇ m with pearlescent pigments with "large” particle sizes, e.g. 10-150 ⁇ m can be mixed.
• the thickness of the individual layers, preferably one or more metal oxide layers, on the base substrate is preferably 10-500 nm, in particular 20-400 nm and very particularly preferably 30-350 nm.
• the high refractive index layer (Layer A) generally has layer thicknesses of 10-500 nm, preferably 20-400 nm and in particular 30-350 nm.
• the thickness of the low-index layer (layer B) is preferably 10-500 nm, preferably 20-400 nm, in particular 30-350 nm.
• high refractive index layers are understood to mean layers with a refractive index of ⁇ 1.8, such as TiO 2 , Fe 2 O 3 , Fe 3 O 4 , while low refractive index layers have a refractive index of ⁇ 1.8, such as SiO 2 , Al 2 O 3 .
• AIO OH
• the pearlescent pigments can contain several, identical or different combinations of layer packages, but preference is given to covering the substrate in the case of multilayer pigments with only one Layer package (A) (B) (A).
• the pigment according to the invention can contain up to 4 layer packets, although the thickness of all layers on the substrate should not exceed 3 ⁇ m.
• an odd number of layers are preferably applied to the platelet-shaped substrate, each with a highly refractive layer in the innermost and outermost layers.
• a structure of three optical interference layers in the order (A) (B) (A) is particularly preferred.
• TiO 2 , Fe 2 O 3 and / or Fe 3 O 4 or a mixture of titanium oxide and iron oxide are preferred as the high-index layer.
• the TiO 2 can be present in the rutile or anatase modification.
• low-index materials suitable for coating (B) are preferably metal oxides or the corresponding oxide hydrates, such as. B. SiO 2 , Al 2 O 3 , AIO (OH), B 2 O 3 , MgF 2 , MgSiO 3 or a mixture of the metal oxides mentioned, suitable in accordance with the legal approvals for use in food or pharmaceutical products.
• the particularly preferred pearlescent pigments for the food sector are mica flakes (synthetic or natural) or SiO 2 flakes, which have a metal oxide layer (TiO 2 or Fe 2 O 3 or Fe 3 O 4 ) with a thickness of 10 nm to 500 nm are covered.
• the thicknesses of the platelets are in the range from 200 nm to 900 nm.
• such pigments are distinguished by particularly intense interference colors and / or by strong angle-dependent color change effects. The latter show that a viewer perceives different colors when changing his observation position to the pigmented object.
• Pearlescent pigments approved for the food sector are commercially available, for example under the Candurin® brand from Merck KGaA.
• the pearlescent pigments can be incorporated during or after the dough preparation.
• the incorporation is carried out by conventional mixing methods, preferably by stirring devices or slow mixers or by hand with a whisk.
• other familiarization methods known to the person skilled in the art can also be used.
• pearlescent pigment in amounts of 0.5-10% by weight, preferably 2-8% by weight, based on the total mass of the dough, gives very good results with regard to the coloring.
• An overdosing to compensate for the loss of color caused by the baking temperature, as is customary with other conventional dyes / pigments, can thus be dispensed with when using effect pigments, in particular pearlescent pigments and interference pigments.
• the pearlescent pigments can be used both individually and as mixtures of different pearlescent pigments.
• clearly visible advantages in terms of hiding power and resulting gloss effect are achieved if two or more pearlescent pigments of different particle sizes are combined in such a mixture.
• pearlescent pigments can also be combined with other natural, synthetic or artificial food colors or pigments and coloring fruit and plant extracts.
• Temperature stable dyes and pigments such as Biochar E153, Carmine E120 or Caramel E150.
• Temperature-sensitive dyes such as e.g. Beetroot E162 or chlorophyll E140 can be used.
• the pearlescent pigments used do not suffer any temperature-related color loss during the baking process of the wafers.
• the devices used and the baking surface of the wafer baking machines are in no way colored by pearlescent pigments, in contrast to other, in particular soluble, food dyes, which in turn significantly simplifies the necessary cleaning step.
• the incorporation of the pearlescent pigments into the wafer dough also does not affect the taste.
• the invention also relates to a manufacturing process for coloring wafers and edible paper.

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• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Polymers & Plastics (AREA)
• Nutrition Science (AREA)
• Health & Medical Sciences (AREA)
• Inorganic Chemistry (AREA)
• Organic Chemistry (AREA)
• Coloring Foods And Improving Nutritive Qualities (AREA)
• Cosmetics (AREA)
• Bakery Products And Manufacturing Methods Therefor (AREA)
• General Preparation And Processing Of Foods (AREA)
• Pigments, Carbon Blacks, Or Wood Stains (AREA)

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• 2017
  • 2017-02-07 DE DE102017001106.0A patent/DE102017001106A1/de not_active Withdrawn
• 2018
  • 2018-02-06 EP EP18155223.3A patent/EP3363292B1/de active Active
  • 2018-02-06 KR KR1020180014297A patent/KR20180091758A/ko unknown
  • 2018-02-07 CN CN201810121341.2A patent/CN108391782A/zh active Pending
  • 2018-02-07 JP JP2018020167A patent/JP2018126136A/ja active Pending

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